PCF8562 Universal LCD driver for low multiplex rates

2021-11-22
Description:
The PCF8562 is a peripheral device which interfaces to almost any Liquid CrystalDisplay (LCD) with low multiplex rates. It generates the drive signals for any staticor multiplexed LCD containing up to four backplanes and up to 32 segments. ThePCF8562 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus. Communication overheads are minimized by a display RAM with auto-incremented addressing, by hardware subaddressing and by display memory switching (static and duplex drive modes).
■Features
●AEC-Q100 compliant (PCF8562TT/S400/2) for automotive applications
●Single chip LCD controller and driver
●Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
●Selectable display bias configuration: static, 1⁄2, or 1⁄3
●Internal LCD bias generation with voltage-follower buffers
●32 segment drives:
–Up to sixteen 7-segment numeric characters
–Up to eight 14-segment alphanumeric characters
–Any graphics of up to 128 elements
●32 × 4-bit RAM for display data storage
●Auto-incremented display data loading across device subaddress boundaries
●Display memory bank switching in static and duplex drive modes
●Versatile blinking modes
●Independent supplies possible for LCD and logic voltages
●Wide power supply range: from 1.8 V to 5.5 V
●Wide logic LCD supply range:
–From 2.5 V for low-threshold LCDs
–Up to 6.5 V for guest-host LCDs and high-threshold twisted nematic LCDs
●Low power consumption
●400 kHz I2C-bus interface
●No external components required
●Manufactured in silicon gate CMOS process

NXP

PCF8562PCF8562TT/2PCF8562TT/S400/2PCF8562TT/2,118PCF8562TT/2,518PCF8562TT/S400/2,1PCF8562TT/S400/2,5

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Part#

LCD driver

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automotive ]

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Datasheet

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Please see the document for details

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TSSOP48

English Chinese Chinese and English Japanese

27 September 2021

Rev. 8

PCF8562

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